Looking to use Krytox on the o-rings for my usher fuel caps.
There are several different types; can anyone recommend the correct type?
There are several different types; can anyone recommend the correct type?
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Krytox grease
- Thread starter rocketman1988
- Start date
Thanks!
Yes, but one small tube will last you a very long time. Doesn’t take much to keep the o-rings from sticking.
Seems like there would be a chemist around here that could come up with a less pricey solution that works as well.
Is Krytox that superior to say Superlube grease?
Is there anyone who has tested both?
I’ll pay up for quality, but ouch for a lip balm size tube if it’s not significantly better.
Is there anyone who has tested both?
I’ll pay up for quality, but ouch for a lip balm size tube if it’s not significantly better.
That $30 will last the rest of your life, and mine.
Krytox is fuel proof. I didn't see that in the spec for Superlube.
Me too……. and Scott C is a young guy.I’ve gone through a couple of the 0.5 oz tubes already, and I’m not dead yet!
soooo....if one 1/2 oz lasts a lifetime then how do you be so selective as to what gets the best grease? where is white lithium no longer good enough? i probably use 1/4 oz on the hinge pins alone in a year. i can see using camguard in my engine but i don't think most of my applications warrant the annual price of camguard for my regular grease applications
I had tried EZ Turn (fuel lube) and Super Lube grease on the fuel cap o-ring ... neither worked like Krytox.
Had a tube of Krytox that I'd "accidentally" brought home from work many years ago - didn't think to use it on the o-ring until somebody mentioned it here on VAF.
The fuel cap lever now closes fully without excessive force.
better living thru chemistry !
Had a tube of Krytox that I'd "accidentally" brought home from work many years ago - didn't think to use it on the o-ring until somebody mentioned it here on VAF.
The fuel cap lever now closes fully without excessive force.
better living thru chemistry !
jmra72a
Well Known Member
Krytox is excellent product, but I find that I don't want the grease on my hands then jump into my plane with a touch screen glass panel. I don't use any grease. I occasionally lube them with gasoline and adjust them so that they tighten but not enough to cause trouble getting them off.
From Superlube below. I ordered I tub #71160 (14.1 oz for $34 on sale at Amazon) to try.
The basic ingredients in our part number 21030 are very similar to Krytox except for the base fluid oil
We have another product that we usually substitute for Krytox called Super Lube HTEP Grease ( See attached).
The Krytox has a PFPE base fluid oil which is different from Super Lube but except for Oxygen safe environments should work just as well.
The basic ingredients in our part number 21030 are very similar to Krytox except for the base fluid oil
We have another product that we usually substitute for Krytox called Super Lube HTEP Grease ( See attached).
The Krytox has a PFPE base fluid oil which is different from Super Lube but except for Oxygen safe environments should work just as well.
I also went the Super Lube route first (worth a try) didn't work...and went with Krytox GPL 205 grease.
It works! The first and only application was two years ago. A dot of lube 1/8" diameter will do both "O" rings. A tube will last one user over 30 years...... you won't be disappointed.
It works! The first and only application was two years ago. A dot of lube 1/8" diameter will do both "O" rings. A tube will last one user over 30 years...... you won't be disappointed.
Update- I asked specifically about this application (cap o-ring with exposure to leaded and unleaded fuel) and the company suggested
https://www.super-lube.com/o-ring-silicone-grease-93003.. I’ll get a tube and test that. I may be disappointed , but plenty of other uses for it.
https://www.super-lube.com/o-ring-silicone-grease-93003.. I’ll get a tube and test that. I may be disappointed , but plenty of other uses for it.
Krytox is superior in many ways. Many car manufacturers use it in places like sun roofs where they call it "lubed for life" meaning it lasts the lifetime of the vehicle. It is very chemically stable / inert. Shelf life should be very long meaning you probably will never have to buy more. I just used some last week to lube the aileron belcrank bushing.
